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W. 0. SMITH.

FIRE CHAMBER FOR 000K STOVBS.

F No. 330,935. Patented Nov. 24, 1885.

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(No Model.) 2 Sheets-Sheet 2.

W. 0. SMITH.

FIRE CHAMBER FOR 000K. STOVBS.

No. 330,935. Patented Nov. 24,1885.

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lJNrTnD STATES FIRE-CHAMBER FOR COOK-STOVES.

$PECIFICATION forming part of Letters Patent No. 330,935, dated November24, 18 85.

Application filed June 21, 1884. Serial No. 135,660.

To all whom it may concern.-

Be it known that I, WILLIAM 0. SMITH, of the town of Warsaw, county ofBenton, State of Missouri,have invented anew and Improved Fire-Chamberfor Cooking Stoves and Ranges; and I do hereby declare that thefollowing description, taken in connection with the accompanying sheetof drawings, forms a complete specification of my invention, wherein areset forth the nature and principles of my said improvements, by which myinvention may be distinguished from all others of a similar class,together with such parts as I claim and desire to have secured to me byLetters Patent.

This invention relates to improvements in that class of articles knownas cookingstoves, and it consists, substantially, in the parts asconstructed and in the particular combinations thereof, to behereinafter distinctly described,and pointed out in the claims.

The general objects of the invention will be sufficiently understoodfrom the description hereinafter given, and with reference to theaccompanying drawings, before referred to, in which- Figure 1 representsin perspective a stove embodying my improvements, the doors of thefire-chamber being removed to more clearly indicate the disposition ofparts. Fig. 2 is a detail perspective view of the perforated bottomplate for supporting the fuel in the firechamber, the same beingconstructed at its front edge with a grating, as shown. Fig. 3represents a front view of the front plate for the fire-chamber, thesame being constructed comb-like on its lower edge, the teeth of whichbeing arranged to either coincide with those of the bottom plate oralternate therewith, as desired. Fig. 4 is an inverted perspective viewof a plate of peculiar construction, the same operating in conjunctionwith the other parts of my apparatus to carry my invention into effect.Fig. 5 is a detail view of handle or hook by which the plate d isoperated. Fig. 6 represents a vertical longitudinal section of stoveshown in Fig. 1.

Reference being had to the several parts by the letters marked thereon,A represents a stove embodying my improvements, and A indicates thefire-chamber, the same being located at the forward end of the stove,its

(No model.)

bottom being inclined upwardly, as shown, and constituting the top ofthe oven.

9 represents a plate of cast-iron, which is p located or arranged in thefire-chamber horizontally, the said plate being perforated, as shown,and formed at its front or forward edge with upwardly-turned lugs orteeth, the latter constituting, with similar teeth on the front plate, agrating by which the fuel is confined or maintained in the fire-chamber.

0 represents a front plate for the fire-chamber, and is formed on itslower edge with teeth corresponding to those on the plate g, thefunction of which has been stated.

d represents a plate of cast-iron, provided at its two opposite sides orcorners with wedgeshaped flangesl Z, as shown, said flanges dependingdownward from the plate. Said plate is formed or provided with a cleat,t, on its under side, which is designed to engage a lug or projection onthe oven-top, to prevent the plate from sliding forward into theash-pit. It is also formed or provided with a perforated ear orprojection, in which the hook (shown in Fig. 5) may be inserted for thepurpose of drawing the plate forward when required.

Operation: By sliding the plate d backward into the space in which itislocated the wedgeshaped flanges, by riding upon the oven-top, will raisethe plate up adjacent to or in contact with the under side of theperforated plate 9, thus closing up all entrances through which anyunder current of air would pass, and thereby causing the air to pass inat the front of the grate to the fire-chamber. The operation thus farexplained is generally resorted to in using this device when starting afire. When ashes have accumulated in the fire-chamber, the plate 01 isdrawn forward until its cleatt engages the lug m on the oventop, thusforming an inclined shelf, onto which the ashes fall or sift from thefire-chamber, the said ashes filling up the space thus formed betweenthe plates d and g, and acting to shut off or obstruct the passage ofair or draft through the perforated plate 9 from beneath. Upon furtheraccumulation of ashes in the fire-chamber the plate (1 is simply shakenor vibrated, whereupon the ashes between the two plates will slide intothe ash-pit in the hearth, the ashes above the plate 9 sifting down andfilling the space thus made, and

securing the conditions favorable to uniform operation.

What I claim is-- I l. The combination, with a cooking stove havingv afire-chamber provided with a perfo rated bottom and a front grating, andan .inclined shelf beneath the fire-chamber, of a movable plate havingWedgeshaped flanges depending therefrom at corresponding sides,substantially as described.

2. The combination, with a cooking-stove having a fire-chamber providedwith a perforated bottom and a front grating, and an inclined shelfbeneath the fire-cham her having a lug, of a movable plate havingwedge-shaped flanges at corresponding sides, and formed with a cleat onits under side, and a perforated extension or ear, substantially as de--flanges and the cleat t and perforated ear,

substantially as described.

WILLIAM 0. SMITH.

Witnesses:

D. B. HURLBUT, J. E. MORGAN, Jr.-

